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•15 Qs
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Combinations
Quiz
•
Science
•
7th Grade
•
Hard
+2
Standards-aligned
Lisa Thompson
FREE Resource
15 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is a compound?
A substance that is made by the chemical combination of two or more elements.
A substance that is made by heating a single element.
A substance that is made by the physical collection of two or more elements.
A mixture that is made by heating a single element in a vacuum.
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the combination of two or more substances that results in a chemical reaction?
A mixture
A compound
A solution
A suspension
Tags
NGSS.MS-PS1-2
NGSS.MS-PS1-5
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which of the following is an example of a combination reaction?
@@ ext{C} + ext{O}_2 ightarrow ext{CO}_2@@
@@ ext{H}_2 ext{O} ightarrow ext{H}_2 + ext{O}_2@@
@@ ext{NaCl} ightarrow ext{Na} + ext{Cl}_2@@
@@ ext{CaCO}_3 ightarrow ext{CaO} + ext{CO}_2@@
Tags
NGSS.MS-PS1-2
NGSS.MS-PS1-5
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
In a combination reaction, two or more reactants combine to form:
A single product
Multiple products
No product
A catalyst
Tags
NGSS.MS-PS1-5
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which of the following best describes a combination in the context of chemical bonding?
The physical mixing of substances without chemical bonding
The chemical bonding of atoms to form molecules
The separation of molecules into individual atoms
The dissolution of a solid into a liquid
Tags
NGSS.MS-PS1-5
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the result of combining hydrogen and oxygen in a chemical reaction?
Water
Hydrogen peroxide
Ozone
Methane
Tags
NGSS.MS-PS1-1
NGSS.MS-PS1-2
NGSS.MS-PS1-5
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which of the following is NOT a characteristic of a combination reaction?
Formation of a single product
Release of energy
Involves only one reactant
Involves two or more reactants
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